Home / 259,472.46-389,261.20-109,712.50

Finding the Fourth Proportional to 259,472.46, 389,261.20 and 109,712.50

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Solution

The fourth proportional to 259,472.46, 389,261.20 and 109,712.50 is: 164,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,472.46 : 389,261.20 = 109,712.50 : x
  2. Step 2: Convert to fraction form
    259,472.46/389,261.20 = 109,712.50/x
  3. Step 3: Cross multiply
    259,472.46x = 389,261.20 × 109,712.50
  4. Step 4: Simplify right side
    259,472.46x = 42,706,819,405
  5. Step 5: Solve for x
    x = 42,706,819,405/259,472.46
  6. Step 6: Final answer
    x = 164,590.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.